Heat Transfer 25-26

ESS2.1 How does uneven heating of the Earth create convection patterns in the ocean and atmosphere?

Engage: What is making you feel warm in each situation? Discuss with your table group.

• ​You touch the handle of a metal pan that’s been sitting on a hot stove.

• You’re sitting in front of a campfire and your face feels warm.

• You’re standing in the kitchen when someone opens the oven — you feel a wave of warm air.

​Be ready to share:
What is happening in each situation?
How is the heat getting to you?
Do all 3 happen in the same way?

​Listen to the song on the next slide, and pay attention to the pictures!

Explain: ​Read about CONDUCTION on page 7. Use the info on the next slide to help you draw a picture clue in the box at the bottom of the page.

• Conduction...(knuckles touching)

• Convection...(move hands in circular motion)

• Radiation...(open arms like wings)

​Think of a lava lamp: the blobs of wax heat up, rise because they’re less dense, cool down, sink because they’re more dense, and the cycle repeats. That’s convection!

​Go to the Canvas module titled, Week of 10/13 - Warmups. Using the answer sheet I gave you, look at each picture and write the type of heat transfer that the picture is showing.

​Due on Friday, 10/17